Biology, 21.12.2019 04:31 isabellemaine

True statements about disease prevalence include all of the following except
1. prevalence is the proportion of people in a given population who currently have the disease.
2. prevalence can be estimated from the results of a cross-sectional study.
3. prevalence is approximately equal to the product of the incidence of the disease and its duration.
4. prevalence is a measure of existing cases of the disease at a particular point in time (or over a specified time period), rather than the proportion of new cases that develop during a specified period of time.
5. prevalence will decrease if a new drug reduces mortality associated with the disease, even if it does not result in a cure.

Answers: 3

Show answers

Another question on Biology

Biology, 21.06.2019 19:30

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Answers: 2

Answer

Biology, 21.06.2019 20:00

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Answers: 3

Answer

Biology, 22.06.2019 01:30

What occurs to the cell during mitosis

Answers: 2

Answer

Biology, 22.06.2019 08:00

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

Answers: 3

Answer

You know the right answer?

True statements about disease prevalence include all of the following except
1. prevalence is...

Questions